The subnet must be specified as part of `ipam.configs`.
This was unfortunately slightly incorrect due to a mistake in the official Docker docs being propagated, which has since been fixed upstream.
Refer to the official Compose Spec for more details:
* https://docs.docker.com/compose/compose-file/06-networks/#ipam
For added clarity, a user requested we document the example config snippets instead of only linking external references to them. Revised section and adjusted to presenting via the content tabs feature.
Also removed the FAQ inline heading link for Rancher. It's not a relevant link (as the question already expects knowledge of Rancher), and breaks out of the bg colour heading style due to the HTML generation logic from mkdocs.
